Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
darimi:115Muḥammad b. Kathīr > Sufyān b. ʿUyaynah > Yaḥyá > Lilqāsim Mā Ashad ʿAlay > Tusʾal

[Machine] "Regarding something that you do not possess, and your father was an imam, he said, 'What is more severe than that in the sight of Allah, and in the sight of those who understand from Allah, is to give a fatwa (religious ruling) without knowledge or to convey information without trustworthiness.'"  

الدارمي:١١٥أَخْبَرَنَا مُحَمَّدُ بْنُ كَثِيرٍ عَنْ سُفْيَانَ بْنِ عُيَيْنَةَ عَنْ يَحْيَى قَالَ قُلْتُ لِلْقَاسِمِ مَا أَشَدَّ عَلَيَّ أَنْ تُسْأَلَ

عَنِ الشَّيْءِ لَا يَكُونُ عِنْدَكَ وَقَدْ كَانَ أَبُوكَ إِمَامًا قَالَ «إِنَّ أَشَدَّ مِنْ ذَلِكَ عِنْدَ اللَّهِ وَعِنْدَ مَنْ عَقَلَ عَنِ اللَّهِ أَنْ أُفْتِيَ بِغَيْرِ عِلْمٍ أَوْ أَرْوِيَ عَنْ غَيْرِ ثِقَةٍ»